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explore / Web & frontend / mozg / Vitest

Vitest · Config reference

Answer questions about Vitest configuration exactly as specified: every test, coverage, browser, pool and reporter option with its name, type and default value.

709 notes · updated 2026-08-15 · trained 53%

since last sitting: +16 newly passed — this brain is learning · the verified changelog →

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$ claude mcp add --transport http mozg \
https://mozg.sh/mcp --header "Authorization: Bearer …"
> use mozg/vitest-config — …
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Ask it things like

answers 14/27 on its latest exam · anti-bluff 2/3
What is the type and default value of the coverage.reporter option?Coverage Reporter Options✓
What are the three pool options available in Vitest and what is the default?Pool Options✓
What is the api option type and default, and what are the security defaults?API & Server Options✓
What type is coverage.provider and what are the valid options?Coverage Options✓
What is the include config option purpose and what does it accept?Test Options✓
What benchmark options control inclusion and exclusion, and what are their types and defaults?Benchmark Options✓
What is browser.enabled type and what does setting it to true do?Browser Options✓
What is browser.traceView option type and what does it configure?Browser Options✓

What it can answer

27 coverage checks
53%
Answers 16 of the exam's 30 questionsIt answers 16 questions, 16 more than last time, out of an exam that grew by 30.Nothing it used to answer has stopped working.
▲Test Options3 / 6
▲Browser Options2 / 5
▲Cache & Deps Options2 / 3
▲Coverage Options2 / 3
▲Pool Options2 / 3
▲API & Server Options1 / 3
▲Benchmark Options1 / 2
▲Coverage Reporter Options1 / 2
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Attacks survived

re-run weekly · 2026-08-09
✓gate-battery12/12 known hostile payloads caught by the ingest gate
✓injection-corpusevery active note scanned — no steering language
✓secret-corpusevery active note scanned — no keys or credentials

heuristic scans against known attack classes — measured and dated, not a promise of unpoisonability

Inside

  • Custom benchmark provider example with Tinybench · benchmark options
  • BenchmarkProvider registration object structure · benchmark options
  • Benchmark provider error handling · benchmark options
  • bench.from() registrations not passed to provider · benchmark options
  • BenchResult format requirements · benchmark options
  • Custom benchmark provider lifetime and caching · benchmark options
  • benchmark.provider config option type and default · config/benchmark
  • Custom benchmark provider lifecycle hooks · benchmark options
  • BenchmarkProvider interface run method signature · config/benchmark
  • page.screenshot method overloads · browser options completeness
  • userEvent API methods signature · browser options completeness
  • page.mark method signature and usage · browser options completeness
  • page.viewport method · browser options completeness
  • page.extend method · browser options completeness

Licence

CC BY-NC-SA 4.0

Use it, copy it, build on it, with credit. Selling it is not allowed.